In this modern world of ours many people seem to think that science has somehow made such religious ideas as immortality untimely or old fashioned. I think science has a real surprise for the skeptics. Science, for instance, tells us that nothing in nature, not even the tiniest particle, can disappear without a trace. Nature does not know extinction. All it knows is transformation. If God applies this fundamental principle to the most minute and insignificant parts of His universe, doesn't it make sense to assume that He applies it to the masterpiece of His creation, the human soul?

All one can really leave one's children is what's inside their heads. Education, in other words, and not earthly possessions, is the ultimate legacy, the only thing that cannot be taken away.

My experiences with science led me to God. They challenge science to prove the existence of God. But must we really light a candle to see the sun?

We should remember that science exists only because there are people, and its concepts exist only in the minds of men. Behind these concepts lies the reality which is being revealed to us, but only by the grace of God.

The greatest gain from space travel consists in the extension of our knowledge. In a hundred years this newly won knowledge will pay huge and unexpected dividends.

Get me a broom. I'll sweep my own office.

Development of the space station is as inevitable as the rising of the sun; man has already poked his nose into space and he is not likely to pull it back . . . . There can be no thought of finishing, for aiming at the stars-both literally and figuratively-is the work of generations, and no matter how much progress one makes, there is always the thrill of just beginning.